diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2011-11-21 19:00:29 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-01-13 10:20:49 -0600 |
| commit | eea86673608692c2345cfb3edd72eb9958adad7f (patch) | |
| tree | d64ea960c54691e49184769d1937801294d4f66a /hw | |
| parent | 3b89eb43b66eec34277fddfce610ac1ec7c78dba (diff) | |
rtc: raise AF bit when the alarm is encountered but AIE=0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/mc146818rtc.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/hw/mc146818rtc.c b/hw/mc146818rtc.c index 65ed779045..c482d3f3f5 100644 --- a/hw/mc146818rtc.c +++ b/hw/mc146818rtc.c @@ -425,16 +425,17 @@ static void rtc_update_second2(void *opaque) } /* check alarm */ - if (s->cmos_data[RTC_REG_B] & REG_B_AIE) { - if (((s->cmos_data[RTC_SECONDS_ALARM] & 0xc0) == 0xc0 || - rtc_from_bcd(s, s->cmos_data[RTC_SECONDS_ALARM]) == s->current_tm.tm_sec) && - ((s->cmos_data[RTC_MINUTES_ALARM] & 0xc0) == 0xc0 || - rtc_from_bcd(s, s->cmos_data[RTC_MINUTES_ALARM]) == s->current_tm.tm_min) && - ((s->cmos_data[RTC_HOURS_ALARM] & 0xc0) == 0xc0 || - rtc_from_bcd(s, s->cmos_data[RTC_HOURS_ALARM]) == s->current_tm.tm_hour)) { - - s->cmos_data[RTC_REG_C] |= 0xa0; + if (((s->cmos_data[RTC_SECONDS_ALARM] & 0xc0) == 0xc0 || + rtc_from_bcd(s, s->cmos_data[RTC_SECONDS_ALARM]) == s->current_tm.tm_sec) && + ((s->cmos_data[RTC_MINUTES_ALARM] & 0xc0) == 0xc0 || + rtc_from_bcd(s, s->cmos_data[RTC_MINUTES_ALARM]) == s->current_tm.tm_min) && + ((s->cmos_data[RTC_HOURS_ALARM] & 0xc0) == 0xc0 || + rtc_from_bcd(s, s->cmos_data[RTC_HOURS_ALARM]) == s->current_tm.tm_hour)) { + + s->cmos_data[RTC_REG_C] |= REG_C_AF; + if (s->cmos_data[RTC_REG_B] & REG_B_AIE) { qemu_irq_raise(s->irq); + s->cmos_data[RTC_REG_C] |= REG_C_IRQF; } } |